Finding the Fourth Proportional to 517,485.73, 714,130.21 and 288,038.08
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Solution
The fourth proportional to 517,485.73, 714,130.21 and 288,038.08 is: 397,492.50
Step by Step Solution
- Step 1: Write the proportion equation
517,485.73 : 714,130.21 = 288,038.08 : x - Step 2: Convert to fraction form
517,485.73/714,130.21 = 288,038.08/x - Step 3: Cross multiply
517,485.73x = 714,130.21 × 288,038.08 - Step 4: Simplify right side
517,485.73x = 205,696,694,558.40 - Step 5: Solve for x
x = 205,696,694,558.40/517,485.73 - Step 6: Final answer
x = 397,492.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.